19741 Callahan

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19741 Callahan
Name Callahan
Designation 2000 AN141
Discoverer LINEAR
Discovery date January 5, 2000
Discovery site Socorro, New Mexico
Orbital elements
Epoch October 27, 2007 (JDCT 2454400.5)
Eccentricity (e) 0.1308822
Semimajor axis (a) 2.2473531 AU
Perihelion (q) 1.9532146 AU
Aphelion (Q) 2.5414916 AU
Orbital period (P) 3.37 a
Inclination (i) 8.04848°
Longitude of the ascending node (Ω) 167.50502°
Argument of Perihelion (ω) 226.96577°
Mean anomaly (M) 191.04688°

19741 Callahan is a main belt asteroid with a perihelion of 1.8584973 AU. It has an eccentricity of 0.1308822 and an orbital period of 1230.5673756 days (3.37 years).[1]

Callahan has an orbital velocity average of 19.86850048 km/s and a tilt of 8.04882°.

This asteroid was discovered on January 5, 2000 by LINEAR.

This asteroid is named after Diane Callahan who mentored a finalist in the 2003 Discovery Channel Youth Science Challenge, a middle school science competition.[1]


  1. ^ a b "JPL Small-Body Database Browser". NASA. Retrieved 2008-01-05.